EP 2235571 A1 20101006 - ILLUMINATION APPARATUS USING A LIGHT GUIDE PLATE WITH A PLURALITY OF ENGRAVED GROOVES
Title (en)
ILLUMINATION APPARATUS USING A LIGHT GUIDE PLATE WITH A PLURALITY OF ENGRAVED GROOVES
Title (de)
BELEUCHTUNGSVORRICHTUNG MIT EINER LICHTLEITERPLATTE MIT EINER VIELZAHL EINGRAVIERTER RILLEN
Title (fr)
APPAREIL D'ÉCLAIRAGE UTILISANT UNE PLAQUE DE GUIDE DE LUMIÈRE AVEC UNE PLURALITÉ DE RAINURES GRAVÉES
Publication
Application
Priority
IT 2007000929 W 20071228
Abstract (en)
[origin: WO2009084052A1] A liquid crystal display (LCD) backlight apparatus having a light guide plate (21) with a first and a second main surfaces (23, 30) and a first lateral side; a reflection plate (28) facing the first main surface (23); a first light source (24) arranged laterally to the first lateral side of the light guide plate (21), configured to emit a luminous radiation (Ll, L2, L3 ); a transparent diffusion pattern (22) extending on the first main surface (23) and configured to receive the emitted luminous radiation (Ll, L2, L3), to generate a first diffused luminous radiation (d1, d2, d3) toward the reflection plate (28), to collect reflected luminous radiation (r1, r2, r3) from the reflection plate (28) and to generate a second diffused luminous radiation (u1-u9) toward the second main surface.
IPC 8 full level
G02B 6/00 (2006.01); F21V 8/00 (2006.01); G02F 1/13357 (2006.01)
CPC (source: EP)
G02B 6/0038 (2013.01); G02B 6/0055 (2013.01); G02B 6/0061 (2013.01); G02B 6/0068 (2013.01); G02B 6/0073 (2013.01)
Citation (search report)
See references of WO 2009084052A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2009084052 A1 20090709; EP 2235571 A1 20101006; RU 2012128458 A 20140110
DOCDB simple family (application)
IT 2007000929 W 20071228; EP 07870585 A 20071228; RU 2012128458 A 20120705